Method of providing for the dynamic stability and safety of a vehicle and device for the implementation thereof

Abstract

The invention relates to road traffic safety technology, and more particularly to intelligent transportation systems and vehicle-based means for viewing the space in the front lateral region of a vehicle and for keeping a vehicle in a given traffic lane. A method of providing for the dynamic stability and safety of a vehicle comprises the steps of acquiring an image by means of a video camera and a synthetic-aperture radar, assessing the presence of a marking or road stripe, forming a digital radar image and/or a radio-frequency hologram of the road and of objects situated on the verges to the right and left of the road, determining the boundaries of the road, detecting the position of the vehicle, determining the vector velocity of the movement of the vehicle, extrapolating the path of travel of the vehicle taking into account the current vector velocity, calculating the potential occurrence of an emergency event on the basis of the aforementioned extrapolation, and activating the safety means of the vehicle on the basis of the aforesaid calculation. The technical result is that of providing for the dynamic stability of a vehicle in difficult weather conditions.

1 . A method for ensuring directional stability and safety of a vehicle on a road, comprising the following stages:
 obtaining an image of a roadway;   analyzing a presence of marking on the road surface, and, if it is present, processing data about it;   recognizing positions of the marking lines or edge points of the roadway;   calculating a width of the current road lane or an area of the roadbed intended for driving the vehicle and a curvature of said lane and said area of a roadbed;   carrying out a calculation of the position of the vehicle on the current road lane or on the area of the roadbed;   performing a radar probing of a front-side hemisphere of a sector in front of the vehicle with a high resolution along the course of movement by means of an airborne radar with a synthesized aperture;   forming a digital radar image or a radio hologram of the road and objects located on the sides of the road to the right and left of the roadway;   performing automatic recognition on the radar or the radio hologram of a boundary between the road surface and a roadside by analyzing reflected signals in collinear and cross polarizations;   determining a vector speed of the vehicle;   extrapolating a trajectory of motion of vehicle with consideration of the current vector speed;   calculating an assessment of occurrence of an emergency event based on said extrapolation;   activating vehicle security means based on said assessment.   
     
     
         2 . The method according to  claim 1 , characterized in that the current position of the vehicle and the result of extrapolation of the trajectory of its movement on a display of an electronic device are additionally indicated. 
     
     
         3 . The method of  claim 1 , further comprising displaying obstacles on the roadway. 
     
     
         4 . The method according to  claim 3 , characterized in that the analysis of the presence of obstacles takes into account the lanes of movement of the associated and counter-direction and the area of the roadside. 
     
     
         5 . The method according to  claim 2 , characterized in that the electronic device is a head multimedia device of the vehicle. 
     
     
         6 . The method according to  claim 2 , characterized in that the electronic device is an electronic mobile device. 
     
     
         7 . The method according to  claim 6 , characterized in that the mobile device is a smart phone or a tablet or a laptop computer. 
     
     
         8 . The method according to  claim 5 , characterized in that the image on the display of the head multimedia device of the vehicle duplicates information about a trajectory of the vehicle, as well as obstacles on the road, to the electronic mobile device. 
     
     
         9 . The method according to  claim 1 , characterized in that the emergency event is an unintentional displacement of the vehicle into the area of the roadside or a likelihood of a collision with an object, or a skid. 
     
     
         10 . The method according to  claim 9 , characterized in that, depending on a type of the emergency event, an autopilot or an emergency braking system, or an accident prevention system, or a vehicle emergency alarm, or a combination thereof, is activated. 
     
     
         11 . A method according to  claim 10 , characterized in that during activation of the autopilot, a system for holding the vehicle in a traffic lane or in a portion of the road surface of the vehicle is actuated. 
     
     
         12 . A device for providing directional stability and safety of a vehicle, comprising a control panel, a digital video camera, a data exchange unit with an onboard computer, a microcontroller, a control unit, a unit for interfacing with actuators, signaling means, vehicle safety means, wherein the data exchange unit with the on-board computer is simultaneously interfaced with the control panel, the microcontroller and the control unit, and the microcontroller is coupled via a digital data bus to the digital video camera and the control unit, an output of the control unit via the unit for interfacing with actuators is connected to the actuating devices that represent means for signaling and safety of the vehicle, wherein the device is additionally provided with a radar with a synthesized aperture, the output of which is connected to the bus of digital data transmission with the microcontroller; a vehicle safety means, such as a mobile communication means, is additionally connected to the unit for interfacing with actuators as a mobile communication means, an alarm and an autopilot; the microcontroller is capable of processing data, obtained from the video camera and the radar, on the basis of which the calculation of a vector speed of motion of the vehicle is performed; the microcontroller performs extrapolation of a trajectory of the vehicle motion based on the current vector speed, calculation of an assessment of occurrence of an emergency event on the basis of said extrapolation and activation of a vehicle security means on the basis of said assessment.